Multimode approximation for 238U photofission at intermediate energies

被引：21

作者：

Demekhina, N. A. ^{[1
]}

Karapetyan, G. S. ^{[1
,2
]}

机构：

[1] Yerevan Phys Inst, Yerevan 375036, Armenia

[2] Yerevan State Univ, Yerevan 375049, Armenia

来源：

PHYSICS OF ATOMIC NUCLEI | 2008年 / 71卷 / 01期

关键词：

D O I：

10.1134/S1063778808010031

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The yields of products originating from U-238 photofission are measured at the bremsstrahlung endpoint energies of 50 and 3500 MeV. Charge and mass distributions of fission fragments are obtained. Symmetric and asymmetric channels in U-238 photofission are singled out on the basis of the model of multimode fission. This decomposition makes it possible to estimate the contributions of various fission components and to calculate the fissilities of U-238 in the photon-energy regions under study.

引用

页码：27 / 35

页数：9

共 29 条

[1]

ADAM I, 2000, 10200828 JOINT I NUC

[2] Determination of the formation cross section by γ spectrometry:: Derivation of universal correction formulas for ingrowth during irradiation [J].

Baba, H ;

Sanada, J ;

Araki, H ;

Yokoyama, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1998, 416 (2-3) :301-313

[3] CASCADE-EVAPORATION MODEL FOR PHOTONUCLEAR REACTIONS [J].

BARASHENKOV, VS ;

GEREGHI, FG ;

ILJINOV, AS ;

JONSSON, GG ;

TONEEV, VD .

NUCLEAR PHYSICS A, 1974, A231 (03) :462-476

[4]

BEIZIN SD, 1989, P INT C NUCL FISS 50

[5]

BROSA U, 1986, Z NATURFORSCH A, V41, P1341

[6] Photofission of heavy nuclei from 0.2 to 3.8 GeV [J].

Cetina, C ;

Heimberg, P ;

Berman, BL ;

Briscoe, WJ ;

Feldman, G ;

Murphy, LY ;

Crannell, H ;

Longhi, A ;

Sober, DI ;

Sanabria, JC ;

Kezerashvili, GY .

PHYSICAL REVIEW C, 2002, 65 (04) :446221-4462216

[7] FISSION OF TH-232 AT ENERGIES UP TO 90 MEV [J].

CHUNG, C ;

HOGAN, JJ .

PHYSICAL REVIEW C, 1981, 24 (01) :180-191

[8] U-238 FISSION AT ENERGIES UP TO 100 MEV [J].

CHUNG, C ;

HOGAN, JJ .

PHYSICAL REVIEW C, 1982, 25 (02) :899-908

[9] HIGH-ENERGY PHOTOFISSION OF GOLD AND URANIUM [J].

DAVID, P ;

DEBRUS, J ;

STEIN, G ;

SPEIDEL, KH ;

SOYEZ, W ;

KIM, U ;

MOMMSEN, H ;

KUMBARTZKI, G .

NUCLEAR PHYSICS A, 1972, A197 (01) :163-+

[10] The CRISP package for intermediate- and high-energy photonuclear reactions [J].

Deppman, A ;

Duarte, SB ;

Silva, G ;

Tavares, AOP ;

Anéfalos, S ;

Arrudo-Neto, JDT ;

Rodrigues, TE .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2004, 30 (12) :1991-2002

← 1 2 3 →