76 resultados para Prostaglandin E2


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本文选择不同配体(苯酚类和迭氮)通过Cr(III)(TPP)Cl (Al)的氧化还原取代,分别合成了四个新的铬(III)卟啉配合物,Cr(TPP)N_3P_Y(B_1), P-O_2NC_6H_4OCr(TPP)·THF (C1), P-CH_3OCoH_4OCr(TPP)·THF (D1), Cr(TPP)OC_6H_5·THF (E1)。通过元素分析,红外光谱、~1H NMR、ESR、MS和UV-Vis等分析、表征,确认了以上四种化合物。B1单晶进行了X-射线分析,得其晶体结构和分子结构,从而进一步证实了B1的组成。在CH_2Cl_2或C_6H_6中,氮气保护下,用PhIO直接氧化以上五种铬(III)卟啉配合物,合成并分离出了相应的高价氧络铬卟啉配合物,(PhI) O=Cr(▽)(TPP)Cl (A2), (PhI) O=Cr(▽)(TPP)N_3, (B2), P-O_2NC_6H_4O Cr(▽)(TPP) (1/2IPh) (C2), P-CH_3OC_6H_4O Cr(▽)(TPP) (1/2IPh) (D2), PhIO- Cr(IV)(TPP) (OC_6H_5)·P_Y (E2)。通过研究其元素组成,IR、UV-Vis、ESR、MS等分析,确定了以上五种化合物的组成。基中PhI和P_Y分子的位置尚无法确定。这两类高价氧络铬卟啉,是继右淑珍等第一次得到P450模型化合物的活性中间体-氧络铬(▽)四苯基卟啉对硝基苯甲酸配合物后,又一次得到的苯酸类和迭氮氧络铬卟啉配合物。不同的是,氧络铬(▽)卟啉配合物中都各有PhI分子,化合物E2是第一次得到的关键氧络铬(IV)卟啉配合物,类似于PhIO-Mn~(IV)(TPP)(P-H_2N C_6H_4 CO_2)。高价氧络铬卟啉配合物不稳定,室温下分解,暴露在空气中同时发生分解和还原。不过低温下比较稳定。在CH_2Cl_2或C_6H_6中,我们研究了上述五种氧络铬及Cr(TPP)ClPhIO对碳氢化合物和DNA碱基的氧化反应。不同摩尔比的PhIO-Cr(TPP)Cl对环已烷的氧化给出相同的产物,但转化率和产物分布不同。Al-PhIO和C_2-PhIO体内对碱基胞嘧啶,胸腺嘧啶,腺嘌呤的氧化反应呈阳性,氧化产物中都有尿素CO(NH_2)_2,其中胸腺嘧啶的氧化产物中含有CH_3CO-或CH_3CHOH。这说明氧络铬卟啉配合物能够氧化DNA碱基。氧络铬卟啉具有较高的氧化活性和立体选择性。比较不同轴向配体的氧络铬卟啉的氧化活性,其大小次序正好与其轴向配体的配位能力次序一致。这是由于轴向配体的给电子能力越强,通过中心离子铬向其周围转移的电荷就越多,导致氧络键的强度减弱,即其活性增加。上述研究结果表明,铬(III)卟啉配合物是P-450的较好的模型化合物,氧络铬卟啉配合物是其活性中间体。同时该研究结果支持了Groves等提出的定居卟啉配合物催化氧化机理。

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人和猕猴T淋巴细胞能与树鼠句红细胞(tree shrew red blood cell, TRBC)形成结合力特强的玟瑰花结(T-花结),这种花结有与E-花结不同的物理和化学特性(贲昆龙 等,1985)。T细胞表面的这种TRBC受体及其配体不同与CD2、E2分子及其配体(Ben and Zheng, 1991)。为了进一步探讨TRBC受体与已知粘附分子的关系,我们用抗CD2、CD11a、D29、CD44、CD56、E2和CAM'S的单抗,用抗原调变、花结形成的阻断等试验研究了TRBC受体与这些分子的关系。继而选择了既能调变E-受体又能调变TRBC受体的六种单抗,以免疫转印技术,比较了NP-40,毛地黄皂苷,超声和高渗KCL四种方法装取的膜抗原中CD2和TRBC受体的特性。

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The tunneling from an AlGaAs confined thin layer to a GaAs layer in the GaAs/Al0.33Ga0.67As/GaAs structure during the trapped electron emission from deep level in the AlGaAs to its conduction band has been observed by deep level transient spectroscopy. With the aid of the tunneling effect, the conduction-band offset DELTAE(c) was determined to be 0.260 eV, corresponding to 63% of DELTAE(g). A calculation was also carried out based on this tunneling model by using the experimental value of DELTAE(c) = E2 - E1 = 0. 260 eV, and good agreement between the experimental and calculated curves is obtained.

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The measurement of DLTS on the alloy InxGa1-xAsyP1-y (0 less-than-or-equal-to y less-than-or-equal-to 0.3; 0.5 greater-than-or-equal-to x greater-than-or-equal-to 0.35) shows a new signal, labeled as E2, with an activation energy of E(c) - 0.61 eV and the SIMS signals show a large number of oxygen. To clarify is further, the energy of the deep level E2 is quantitatively calculated by using Vogl's tight-binding theory and Hjalmarson's deep level theory. As a result, the deep A1-symmetric level associated with an oxygen on the anion site of InxGa1-xAsyP1-y locates deeply in the band gap. Thus, the level E2 is considered to be induced by the oxygen impurity.

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测量了一系列不同隔离层(spacer)厚度、阱宽和硅δ掺杂浓度的单边掺杂的赝形高电子迁移率晶体管(p-HEMTs)量子阱的变温和变激发功率光致发光谱,详细研究了(el-hh1)和(e2-hh1)两个发光峰之间的动态竞争发光机制,并运用有限差分法自洽求解薛定谔和泊松方程以得出电子限制势、子带能级以及相应的电子包络波函数、子带占据几率和δ掺杂电子转移效率,研究了两个峰的相对积分发光强度随隔离层厚度、阱宽和δ掺杂浓度的变化。

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对Egonol龙胆三糖苷及以Egonol衍生物对雌二醇生成活性及其相关机制进行了研究。发现Egonol龙胆三糖苷促雌二醇最高生成率在MCF-7、HepG2、ROS1728中分别为157% 、182.4%、226.8%(以空白组200μg/ml睾酮转换成E2值作为100%生成率)。活性的强弱可能与芳香化酶的组织特异性表达情况一致,说明Egonol龙胆三糖苷促雌二醇活性可能与芳香化酶有关。芳香化酶的组织特异性表达与特异性启动子有关系,Egonol龙胆三糖苷在各组织中皆有促雌二醇活性,说明该化合物不是通过调节该酶的基因表达而起作用。 在探究Egonol龙胆三糖苷及其衍生物是否介导cAMP-PKA途径从而影响芳香化酶的表达中,发现该系列化合物在HEK-293T细胞中对cAMP的影响非常弱小。在人HepG2细胞中显示了极强的提高cAMP的作用。而化合物对cAMP的作用与其促雌二醇活性强弱不呈正相关关系,对c AMP-PKA途径的激活可能与胞内雌激素有关。 Egonol龙胆三糖苷及其衍生物对HepG2细胞增殖影响显示,该系列化合物同雌二醇一样有相似的较弱促HepG2细胞增殖作用。而且存在一定剂量依赖性。在瞬时转染有ERE(雌激素作用元件)的HepG2中,Egonol龙胆三糖苷及其衍生物也显示了类似于雌二醇与ERE结合的作用,进一步提示Egonol龙胆三糖苷及其衍生物在HepG2细胞中具备雌激素样作用。 为研究Egonol龙胆三糖苷及其衍生物是否可能直接提高芳香化酶的活性,我们计划将芳香化酶从芳香化酶阳性细胞中克隆后表达到芳香化酶阴性的细胞中。在MCF-7细胞中以Oligo dT为引物合成的cDNA模板,和在ROS1728细胞中以Oligo dT及大鼠引物F链为引物合成的cDNA模板能成功扩增出与芳香化酶全长编码序列大小一致的片段。 Egonol衍生物在HepG2、ROS1728细胞中促雌二醇活性的实验表明,Egonol苯环上引入其它基团可以提高Egonol的活性。 从雌激素经典的基因组效应和非基因组效应两方面对雌激素信号转导研究进展进行了简单的综述。 The promoting effects of egonol gentiotrioside and egonol derivatives on the synthesis of estrogen E2 were studied. In vitro test, egonol gentiotrioside promoted the synthesis of estrogen E2 in MCF-7, HepG2,ROS1728 cell lines with mean yields of estrogen E2 57%,82.4% and 126.8%, higher than those of blank control at a concentration of 100 mg/ml. The difference of estrogen E2 synthesis promoting effects among the cell lines suggested tissue specificity. It is in accordance with tissue specific character of aromatase expression. The evidence implied that effect of egonol gentiotrioside on promoting the synthesis of estrogen E2 was related to the aromatase. Different expression levels of aromatase in different tissues are attributed to their specific promoters, but egonol gentiotrioside can promote the synthesis of estrogen E2, in many tissues,so the fact is controversary to the estimation that this compound regulates the aromatase on gene level. In order to investigate whether egonol gentiotrioside and its synthetic derivatives regulates aromatase activity through the cAMP-PKA signal pathway,we transfected the p CRE-Luc luciferase reporter gene into the HEK-293T cells and HepG2 cells. These compounds had weak activity in promoting the cAMP activity in HEK-293T cells but strong in HepG2 cells.The compounds’effect of promoting the cAMP may be related to their estrogenic activity in cells. The modified HepG2 cell proliferation assay was used to evaluate the estrogenic activity of egonol gentiotrioside and its derivatives. The weak estrogenic activity of egonol gentiotrioside and its derivatives at various concentrations expressed as proliferative effect relative to that of blank control was examined. We transfected the pERE-Luc luciferase reporter gene into the HepG2 cells. These compounds possessed significant activity on estrogen response element compared with the one treated with 10 n M estrogen E2. This evidence indicated that the estrogenic activity of egonol gentiotrioside and its derivatives. In order to investigate whether the egonol gentiotrioside and its derivatives can upregulate the activity of aromatase directly, The full-length of P450 aromatase cDNA encoding aromatase were amplified by using primer Oligo dT in MCF-7,and specific primer in ROS1728,respectively. The structure-activity relationship of Egonol in promoting the synthesis of E2 in HepG2 and ROS1728 cells indicated that introduction of some group on the basic sketon of egonol could improve the effect. The progress in research of signal pathway of estrogen in recent years was summarized.

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本文对禄春安息香(Styrax macranthus)种子和攀援孔药花(Porandra scandens)全草的化学成分进行了研究,共获得30个化合物,其中2个为新化合物。 从禄春安息香种子95%乙醇提取物中分离并鉴定了12个化合物,其中2个新化合物鉴定为3-[7-methoxy-2-(3,4-methylenedioxy phenyl) benzofuran-5-yl] propyl 3-[7-methoxy-2-(3,4-methylenedioxyphenyl)benzofuran-5-yl] propanoate (1) 和去甲氧基-egonol-龙胆双糖甙 (2);已知化合物分别为2-(3,4-二氧亚甲基苯基)-5-甲酰基-7-甲氧基-苯并呋喃 (3)、egonol (4)、去甲氧基-egonol (5)、去甲基-egonol (6)、egonol-葡萄糖甙 (7)、egonol-龙胆双糖甙 (8)、egonol-龙胆三糖甙 (9)、豆甾醇 (10)、二十四烷酸 1-甘油酯 (11) 和胡萝卜甙 (12)。生物活性测试发现,化合物2具有促进雌激素E2合成的作用。 从攀援孔药花全草95%乙醇提取物中分离并鉴定了19个化合物:(2S,3S,4R)-2-[(2R)-2-羟基-二十一烷酰基氨基]-二十一烷-1,3,4-三醇 (13)、(2S,3S,4R)–2–二十四烷酰基氨基-十八烷-1,3,4-三醇 (14)、胡萝卜甙 (12)、β-谷甾醇 (15)、(20S,22E,24R)-5α,8α-表二氧-麦角甾-6,22-二烯-3β-醇 (16)、6β-羟基-豆甾-4-烯-3-酮 (17)、十六烷酸 1-甘油酯 (18)、桦木酸 (19)、大黄素 (20)、二十二烷酸 1-甘油酯 (21)、对羟基苯甲醛 (22)、十七烷酸 1-甘油酯 (23)、金色酰胺醇乙酸酯(24)、十九烷酸 1-甘油酯 (25)、棕榈酸 (26)、(E)-p-香豆酸 (27)、(22E,24S)-24-麦角甾醇-7,22-二烯-3β,5α,6β-三醇 (28)、2-去氧-β-蜕皮激素 (29)和auranamide (30)。 综述了近十年来发现的2-芳基苯并呋喃类新木脂素的结构特征、来源、生物活性和化学全合成。 Phytochemical investigation on the seeds of Styrax macranthus and the whole plants of Porandra scandens led to the isolation of thirty compounds, two of which were new ones. Two new 2-aryl benzofuran derivatives, 3-[7-methoxy-2-(3,4-methylenedioxy phenyl) benzofuran-5-yl]propyl 3-[7-methoxy-2-(3,4-methylenedioxyphenyl)benzo furan-5-yl]propanoate (1) and demethoxy egonol gentiobioside (2), were isolated from the 95% aqueous ethanolic extract of the seeds of Styrax macranthus, together with 7-methoxy-2-(3,4-methylenedioxyphenyl) benzofuran-5-carbaldehyde (3), egonol (4), demethoxy egonol (5), demethyl egonol (6), egonol glucoside (7), egonol gentiobioside (8), egonol gentiotrioside (9), stigmasterol (10), 2,3-dihydroxypropyl tetracosoate (11), and daucosterol (12). In vitro test, compound 2 promote the synthesis of estrogen E2. Nineteen compounds were isolated from the 95% aqueous ethanolic extract of the whole plant of Porandra scandens for the first time. Their structures were identified as (2S,3S,4R)-2-[(2R)-2-hydroxy-heneicosanoylamino]-1,3,4- heneicosanetriol (13), (2S,3S,4R)-2-tetracosanoylamino-1,3,4-octadecanetriol (14), daucosterol (15), β-sitosterol (12), (20S,22E,24R)-5α,8α-epidioxy-ergosta-6,22-diene- 3β-ol (16), 6β-hydroxylstigmast-4-en-3-one (17), 1-glycerol-1-hexadecoate (18), betulinic acid (19), emodin (20), 1-glycerol-1-docosoate (21), p-hydroxybenzaldehyde (22), 1-glycerol-1-heptadecoate (23), aurantiamide acetate (24), 1-glycerol-1- nonadecoate (25), palmatic acid (26), (E)-p-coumaric acid (27), (22E,24S)- 24-metbylcbolesta-7,22-diene-3β,5α,6β-triol (28), 2-deoxycrustecdysone (29), and auranamide (30). The characteristic, natural resource, bioactivity, and the total synthesis of 2-aryl benzofurans were reviewed.

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雌激素是人体内重要的激素之一,具有广泛的生理功能。雌激素缺乏与许多疾病相关,如卵巢功能低下,更年期综合征以及骨质疏松等;雌激素过剩也将导致某些疾病,如乳腺癌、卵巢癌、子宫内膜癌等。目前,如何降低肿瘤组织中的雌激素水平而达到治疗肿瘤的目的,已经得到广泛的研究,但促雌激素生成或调节卵巢功能药物或其相关研究则很少。 本实验室前期的研究发现,瓦山安息香属植物果实中的乙醇提取物具有促雌激素生成作用,通过活性追踪和结构鉴定,确认促E2 生成的主要成分为苯并呋喃类化合物。苯并呋喃类化合物的作用与芳香酶有关,但其确切的作用机理有待证实和深入研究。 为了探讨安息香苯并呋喃类化合物的促雌激素合成的作用机理,拟采用如下的实验方案: 1、细胞学方面,对小鼠3T3-L1 前脂肪细胞、人乳腺癌细胞MCF-7、MDA-MB-231 以及人卵巢癌细胞OVCAR-3、OVCAR-4、OVCAR-5、OVCAR-8、IGROV1 等细胞株,采用RT-PCR 和ELISA 方法研究芳香酶Aro基因的表达和雌二醇E2 的生成,芳香酶抑制剂Formestane 作为阳性对照,研究时效曲线和量效曲线,确定安息香苯并呋喃类化合物SP25 的有效浓度和作用时间。 2、RNAi 方面,设计合成了针对人芳香酶Aro基因的3 对RNAi 序列,转染入细胞,芳香酶促进剂Forskolin 和地塞米松、芳香酶抑制剂Formestane 作为阳性对照,采用实时定量PCR 技术,研究RNA 干扰后,安息香苯并呋喃类化合物SP25 对人芳香酶Aro基因表达水平瓦山安息香苯并呋喃促雌激素合成的机理研究的影响。 3、雌激素受体方面,设计一段ERE 的雌激素调控元件,构建重组荧光素酶报告基因载体,瞬时转染人乳腺癌细胞株MDA-MB-231,建立针对雌激素受体的报告基因筛选模型,观察安息香苯并呋喃类化合物SP25 对雌激素受体的选择性和亲和力,从受体水平考察安息香苯并呋喃类化合物SP25 促进雌激素生成的药理学机理。 实验结果显示: 1、分化后的小鼠3T3-L1 前脂肪细胞、人乳腺癌细胞MCF-7 、MDA-MB-231 以及人卵巢癌细胞OVCAR-3、OVCAR-4、OVCAR-8 等细胞株具有芳香酶基因的表达。睾酮向雌二醇的转化能够被芳香酶抑制剂Formestane 所阻断,其中OVCAR-3 最适合进行下一步的RNAi研究。 2、RNAi 实验结果显示,设计的3 对RNAi 序列中R2 的干扰效果最强,相应的阴性对照C2 与R2 的表达量相差118 倍(24 小时)和19 倍(48 小时),显示R2/C2 这组序列可用于进一步的RNAi 试验。以R2 干扰OVCAR-3 细胞株,药物作用24、48 小时后,芳香酶抑制剂Formestane 与R2 相对表达量相比分别为0.83 倍和0.04 倍;芳香酶促进剂Forskolin 与R2 相对表达量相比分别为3.61 和1.84 倍;芳香酶促进剂地塞米松与R2 相对表达量相比分别为5.76 倍和3.49倍;苯并呋喃类化合物SP25 与R2 相对表达量相比分别为8.13 倍和4.59 倍。实验证实安息香苯并呋喃类化合物SP25 能够促进因RNAi 而发生基因沉默的人芳香酶Aro表达水平的上调。 3、雌激素受体实验结果显示,构建成功重组pERE-pGL3-promoter 荧光素酶报告基因载体和基于报告基因系统的雌激素受体激动剂或拮抗剂的细胞筛选模型。实验结果表明安息香苯并呋喃类化合物SP25 与雌激素受体ERα和ERβ亲和力选择性之比约为3:1 ,SP25通过与雌激素受体ERα结合作用其受体,刺激芳香酶的表达。 本课题通过RNA 干扰、ELISA、荧光实时定量PCR、报告基因筛选模型等技术手段,从细胞水平、蛋白酶水平和基因表达水平、雌激素受体水平等方面系统地研究了从瓦山安息香属植物果实中提取的苯并呋喃SP25 促进促雌激素生成的机理研究。试验结果显示苯并呋喃类化合物SP25 促雌激素生成的主要作用机制是直接促进芳香酶基因表达水平,以及与雌激素受体a 结合,刺激芳香酶活性。 Estrogen is an important hormone that has versatile physiologicalfunctions. Lack of estrogen will lead to many diseases such as lower ovarianfunction, climacteric syndrome and osteoporosis. Excessive estrogen alsoinduces breast carcinoma, oophoroma and endometrial carcinoma and otherdiseases. To depress the estrogen level in tumor tissue to cure carcinomawas widely studied, but there is only few studies reported on the induction ofestrogen and on the regulation of ovary function. We found that the extracts from seeds of Styrax perkinsiae couldpromote the synthesis of estrogen. The active compounds benzofurans wereidentified. Effect of benzofurans may be related to aromatase, but the mechanism was not clear. To reveal the mechanism of these benzofurans to promote estrogensynthesis, the following protocols were adopted: 1 Cytology: 3T3-L1 preadipocytes,human ovary carcinoma celllines OVCAR-3,OVCAR-4,OVCAR-5,OVCAR-8,IGROV1 andbreast carcinoma cell lines MCF-7 and MDA-MB-231 were usedto determine Aro gene expression and estrogen production withRT-PCR AND ELISA methods. Formestane, an aromataseinhibitor, was used as positive control. And dose-curve,time-curve and the effective concentration of SP25 were also studied. 2 Designed 3 pairs of RNAi for human aromatase gene, andtransfected into cell. Aromatase inducer Forskolin andDexamethasone, and aromatase inhibitor Formestane were usedas positive controls. We studied the change of Aro expressionlevel with SP25 by using real-time PCR after RNA interfering. 3 Estrogen Receptor: We constructed the recombined Luciferasereport vector and establish a screening system for estrogenagonist and antagon. With this system, we studied the affinity ofSP25 and estrogen receptor. Results: 1 Differentiated 3T3-L1 preadipocytes¡¢human ovary carcinomacell lines:OVCAR-3, OVCAR-4, OVCAR-8 and breast carcinomacell lines MCF-7, MDA-MB-231 had detected aromatase geneexpression.And OVCAR-3 is more suitable for further aromatasegene function research. 2 In RNAi assay, R2 has a strong interfering effcet in OVCAR-3 cellline, and ratio of C2 (the negative control) to R2 were 118 times(24 hours) and 19 times (48 hours). This means sucessful inRNA interfering. After R2 acted on OVCAR-3 cell line, the ratiosof formestane to R2 were 0.83 and 0.04 times, 5.76 and 3.49times (Dex), 3.61 and 1.84 times (forskolin) and 8.13 and 4.59times (sp25) after drug treated 24 or 48 hours respectively.These results indicated that SP25 can directly induce aromatasegene up-regulation. 3 We had constructed pERE-pGL3-promoter recombined vectorand the Luciferase report gene screening system. Luciferasereport gene assay showed that sp25 had a higher affinity with strogen receptor alpha than estrogen receptor beta, this indicated that SP25 can act on estrogen receptor and induce aromatase. Our results revealed that the mechanisms of benzofuran to promoteestrogen were the upregulation aromatase gene expression and promotion ofaromatase activity and have partially elective affinity with estrogen receptoralpha.

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对双奇核174Re的在束γ谱学实验数据作了仔细分析,提取出了带间与带内E2γ跃迁分支比,并导出了其约化跃迁概率的比值。用带混合理论对约化跃迁概率的比值进行了分析,得到带间相互作用强度及转动带形变的信息。发现不同组态的转动带其跃迁电四极矩具有明显的差异。与相邻奇A核的结构特征类似,这种跃迁电四极矩的差异很可能是由于1/2-[541]准质子或1/2-[521]准中子对原子核的形状驱动效应造成的。

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用能量为140MeV的27Al束流轰击145Nd氧化靶,通过145Nd(27Al,4nγ)168Ta熔合蒸发反应对双奇核168Ta的高自旋态进行了实验研究.扩展了基于πh11/2νi13/2和π5/2+[402]ν5/2+[642]准粒子组态下的转动带能级纲图.根据实验测量结果,对两转动带的准粒子顺排特征作了分析.通过B(M1)/B(E2)的理论与实验值比较以及168Ta相邻双奇核能级间隔系统性,进一步确定了两转动带的准粒子组态和能级的自旋宇称.

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利用在束γ谱学技术和173Yb(18O,4n)熔合蒸发反应研究了187Pt的高自旋态能级结构.实验观测到基于νi13/2,ν7/2-[503],νi213/2νj,ν3/2-[512]和ν1/2-[521]组态的转动带,并且利用推转壳模型对这些转动带的性质进行了解释.总Routhian面计算表明:νi13/2转动带具有显著的负γ形变;负宇称带具有近似长椭球的形变.通过比较带内B(M1)/B(E2)比率的实验值和由Dnau和Frauendorf半经典公式得到的理论值,发现ν7/2-[503]转动带在低转动频率下的带交叉是由一对h9/2质子顺排引起的.

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利用在束γ谱学技术和173Yb(18O,4n)熔合蒸发反应研究了187Pt的高自旋态能级结构.建立了包括3个转动带的187Pt高自旋态能级纲图.基于187Pt周围核结构的系统学和比较带内B(M1)/B(E2)比率的实验值和理论值,建议上述3个转动带的组态分别为11/2+[615],7/2-[503]和1/2-[521].对各转动带的带交叉频率、顺排增益、旋称劈裂等进行了讨论.

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重离子耗散反应需要鉴别产物的电荷数Z ,为此 ,研制了一套ΔE E望远镜 .ΔE由两个串接在一起的气体电离室ΔE1和ΔE2 组成 ,位置灵敏硅半导体测量粒子的剩余能量E .被探测粒子的轨迹与电离室的电场方向平行 .该望远镜具有很低的能量探测阈 ,较小的外尺寸和强的抗电磁干扰能力 .重离子耗散反应19F +2 7Al产物的激发函数实验测量表明 ,该望远镜的电荷分辨Z/ΔZ约为 30 .

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利用在束γ谱学方法 ,通过反应1 4 4 Sm( 2 8Si,1p3n) 1 69Re研究了1 69Re的激发态能级结构 .实验进行了X γ符合、γ γ符合、DCO系数和带内B(M1 ) B(E2 )比率测量 .基于这些测量 ,建立了组态为π9 2 - [51 4 ]的强耦合带和组态为π1 2 -[54 1 ]的退耦合带 .通过比较1 69Re的转动带与邻近奇质子核已知转动带的结构和B(M1 ) B(E2 )比率 ,指定了1 69Re转动带的组态 .实验观测到π9 2 - [51 4 ]和π1 2 - [54 1 ]转动带的中子AB带交叉的转动频率分别为 0 .2 3和 0 .2 7MeV .着重讨论了1 69Re转动带的中子AB带交叉频率、转动角动量顺排和旋称劈列等 ,并讨论了奇ARe核转动带结构的系统性

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利用15 4 Sm( 31P ,5nγ) 180 Ir反应产生并研究了双奇核180 Ir的高自旋态 .实验中进行了180 Ir核的在束γ测量 ,包括γ射线的激发函数测量、X γ和γ γ符合测量 ,首次建立了双奇核180 Ir由 5个转动带构成的能级纲图 .依据从实验数据中提取出的带内B(M1 ) /B(E2 )值与理论计算值的比较 ,以及相邻双奇核的带结构特征 ,给出了转动带的准粒子组态 .在推转壳模型的理论框架中 ,定性地讨论了转动带结构特征的组态依赖性